LATIN DICTIONARYLexicon Latīnum
adverb

interdiū

interdiū (not comparable)
Classical[ɪnˈtɛr.di.uː]Ecclesiastical[inˈtɛr.di.u]

Meaning

  1. not comparablein the daytime; by day

Latīnē defined in Latin in our graded readers

Choosing the right word Döderlein's Latin Synonyms

Dies · Tempus · Tempestas · Die · Interdiu

1. Dies (from ἔνδιος) denotes time in its pure abstract nature, as mere extension and progression; whereas tempus and tempestas, with a qualifying and physical reference, as the weather and different states of time; tempus denotes rather a mere point of time, an instant, an epoch; tempestas, an entire space of time, a period. Hence dies docebit refers to a long space of time, after the lapse of which information will come, like χρόνος; whereas tempus docebit refers to a particular point of time which shall bring information, like καιρός. (iv. 267.) 2. Die means by the day, in opp. to by the hour or the year; whereas interdiu and diu, by day, in opp. to noctu; but interdiu stands in any connection; diu only in direct connection with noctu. (iv. 288.)

interdĭu (ante-class. form interdius, Cato, R. R. 83; Varr. R. R. 2, 10 Schneid.; Plaut. Aul. 1, 1, 33; Most. 2, 2, 14; Merc. 5, 2, 21), adv. dies,
I. during the day, in the daytime, by day (not in Cic.): canes interdiu clausos esse oportet, ut noctu acriores sint, Cato, R. R. 124; so opp. noctu, Caes. B. G. 7, 69, 7; id. B. C. 1, 67, 5: nec nocte nec interdiu, Liv. 1, 47: interdiu, nocte, id. 8, 34 fin.; 21, 32.

Origins

From inter (“between, during”) + diū (“in the day”).

Quick answers

What does interdiū mean in Latin?
interdiū, a adverb, means “in the daytime; by day”.
How do you pronounce interdiū?
In classical Latin, [ɪnˈtɛr.di.uː]; in ecclesiastical (church) Latin, [inˈtɛr.di.u].